POTENTIAL EVALUATION OF THE TERRESTRIAL LASER SCANNER IN STRUCTURAL MONITORING: CASE STUDY MAUA HPP

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Igor Ribeiro Lenartovicz
Luís Augusto Koenig Veiga
Pedro Luiz Faggion
Carlos Aurélio Nadal
Marcos Alberto Soares

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With the purpose of evaluating the potential of using a terrestrial laser scanner in the monitoring of dams, with case study in the Power Plant Maua located in the Tibagi River, on the border between the cities of Ortigueira and TelêmacoBorba, scans were performed in the fi eld in two different times, before and after the formation of its reservoir. The laser point clouds were integrated with data from a survey of robotic total station, in the Cyclone software, to refer all results to the same local topographic system. All data were processed using two different software that allow the detection of displacements by comparing the scan, 3DReshaper and CloudCompare. Some comparison procedures were performed: between the scans performed from equal installation points in different periods, between the scans performed from a point and the dam's overall structure scans, and between the scans of the overall structure in the different periods. The results show a large dependence of the calculation with the meshing process, but in areas of highest density of points, we observed a higher precision of the mesh and a better defi nition of displacements.

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LENARTOVICZ, I. R.; VEIGA, L. A. K.; FAGGION, P. L.; NADAL, C. A.; SOARES, M. A. POTENTIAL EVALUATION OF THE TERRESTRIAL LASER SCANNER IN STRUCTURAL MONITORING: CASE STUDY MAUA HPP. Revista Brasileira de Cartografia, [S. l.], v. 66, 2015. Disponível em: https://seer.ufu.br/index.php/revistabrasileiracartografia/article/view/44744. Acesso em: 24 maio. 2022.
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